c8b2ce588f1708d8561f2e0e266ca09608d4bdd57500d87960ee4af2bae93717

General

Target

5c07b160cfd239fce80b483c5f9aa787.exe
Size

77KB
MD5

5c07b160cfd239fce80b483c5f9aa787
SHA1

7902ebf2588d014d2c448351c090244a135b9407
SHA256

c8b2ce588f1708d8561f2e0e266ca09608d4bdd57500d87960ee4af2bae93717
SHA512

1251b53e5bab1cc31c39dd6866d67d088aee21a06acdcbae18ea9bda653d8327679cec47cb01539741683b5f309c1932df499fa29a0a60d6aa8e3d5b06a1a826
SSDEEP

1536:sNMUtKwEMtLqWHrVGxmx7sQ9PCdd6BVF9BI3iWhd9QrOa5OXi+c:J9MsWHZGxm/9PCz6BTXbg+1

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2676	hinvserv.exe

Executes dropped EXE 3 IoCs

pid	Process
1972	hinvserv.exe
2636	bcdlmem.exe
2676	hinvserv.exe

Loads dropped DLL 4 IoCs

pid	Process
1472	5c07b160cfd239fce80b483c5f9aa787.exe
1472	5c07b160cfd239fce80b483c5f9aa787.exe
2636	bcdlmem.exe
2636	bcdlmem.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\acdllib3 = "C:\\Windows\\system32\\bcdlmem.exe"	5c07b160cfd239fce80b483c5f9aa787.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\acdllib3 = "C:\\Windows\\system32\\bcdlmem.exe"	bcdlmem.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\hinvserv.exe	5c07b160cfd239fce80b483c5f9aa787.exe
File created	C:\Windows\SysWOW64\hinvserv.exe	5c07b160cfd239fce80b483c5f9aa787.exe
File opened for modification	C:\Windows\SysWOW64\bcdlmem.exe	hinvserv.exe
File opened for modification	C:\Windows\SysWOW64\hinvserv.exe	bcdlmem.exe
File opened for modification	C:\Windows\SysWOW64\bcdlmem.exe	hinvserv.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1972	hinvserv.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1472 wrote to memory of 1972	1472	5c07b160cfd239fce80b483c5f9aa787.exe	16
PID 1472 wrote to memory of 1972	1472	5c07b160cfd239fce80b483c5f9aa787.exe	16
PID 1472 wrote to memory of 1972	1472	5c07b160cfd239fce80b483c5f9aa787.exe	16
PID 1472 wrote to memory of 1972	1472	5c07b160cfd239fce80b483c5f9aa787.exe	16
PID 1972 wrote to memory of 2636	1972	hinvserv.exe	29
PID 1972 wrote to memory of 2636	1972	hinvserv.exe	29
PID 1972 wrote to memory of 2636	1972	hinvserv.exe	29
PID 1972 wrote to memory of 2636	1972	hinvserv.exe	29
PID 2636 wrote to memory of 2676	2636	bcdlmem.exe	30
PID 2636 wrote to memory of 2676	2636	bcdlmem.exe	30
PID 2636 wrote to memory of 2676	2636	bcdlmem.exe	30
PID 2636 wrote to memory of 2676	2636	bcdlmem.exe	30

C:\Users\Admin\AppData\Local\Temp\5c07b160cfd239fce80b483c5f9aa787.exe
"C:\Users\Admin\AppData\Local\Temp\5c07b160cfd239fce80b483c5f9aa787.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1472
- C:\Windows\SysWOW64\hinvserv.exe
  C:\Users\Admin\AppData\Local\Temp\5c07b160cfd239fce80b483c5f9aa787.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:1972
- - C:\Windows\SysWOW64\bcdlmem.exe
    C:\Windows\system32\bcdlmem.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Adds Run key to start application
    - Drops file in System32 directory
    - Suspicious use of WriteProcessMemory
    PID:2636
  - - C:\Windows\SysWOW64\hinvserv.exe
      C:\Windows\SysWOW64\bcdlmem.exe
      4⤵
      Deletes itself
      Executes dropped EXE
      Drops file in System32 directory
      PID:2676

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\bcdlmem.exe

Filesize
77KB

MD5
5c07b160cfd239fce80b483c5f9aa787

SHA1
7902ebf2588d014d2c448351c090244a135b9407

SHA256
c8b2ce588f1708d8561f2e0e266ca09608d4bdd57500d87960ee4af2bae93717

SHA512
1251b53e5bab1cc31c39dd6866d67d088aee21a06acdcbae18ea9bda653d8327679cec47cb01539741683b5f309c1932df499fa29a0a60d6aa8e3d5b06a1a826

Download Submit
C:\Windows\SysWOW64\hinvserv.exe

Filesize
2KB

MD5
a1ed06964c3063a4f92cd97a4adbd040

SHA1
02adb961b0ed39312ad84481e1c781ca0d731ef0

SHA256
bc574c38e63b4b82a444ff7184b6cf6a5a9b635b484784436d42dba5a7cea19d

SHA512
a1ea06d08d3dc6afc3056c8174bf8204c7f71135a6b8c3ac55ceef7348ab3886e16c6955ce569d12145ad9632274e8198252b6fc0509952c6c2d43086fc33fef

Download Submit
memory/1472-1-0x00000000002A0000-0x00000000002A4000-memory.dmp

Filesize
16KB

Download
memory/1472-0-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1472-11-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2636-23-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2636-13-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads